Speaker



FIG. 1 is a front top left side perspective view of a speaker showing our new design;

FIG. 2 is a rear top right side perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is rear elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines shown in the drawings represent unclaimed portions of the speaker and form no part of the claimed design. 

CLAIM The ornamental design for a speaker, substantially as shown and described. 